21094864

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:488

約数の個数: 80

約数和(自身を含む): 51425280

約数和(自身を除く): 30330416

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 38, 46, 56, 76, 92, 112, 133, 152, 161, 184, 266, 304, 322, 368, 431, 437, 532, 644, 862, 874, 1064, 1288, 1724, 1748, 2128, 2576, 3017, 3059, 3448, 3496, 6034, 6118, 6896, 6992, 8189, 9913, 12068, 12236, 16378, 19826, 24136, 24472, 32756, 39652, 48272, 48944, 57323, 65512, 69391, 79304, 114646, 131024, 138782, 158608, 188347, 229292, 277564, 376694, 458584, 555128, 753388, 917168, 1110256, 1318429, 1506776, 2636858, 3013552, 5273716, 10547432, 21094864]

約数ペア:

[(1, 21094864), (2, 10547432), (4, 5273716), (7, 3013552), (8, 2636858), (14, 1506776), (16, 1318429), (19, 1110256), (23, 917168), (28, 753388), (38, 555128), (46, 458584), (56, 376694), (76, 277564), (92, 229292), (112, 188347), (133, 158608), (152, 138782), (161, 131024), (184, 114646), (266, 79304), (304, 69391), (322, 65512), (368, 57323), (431, 48944), (437, 48272), (532, 39652), (644, 32756), (862, 24472), (874, 24136), (1064, 19826), (1288, 16378), (1724, 12236), (1748, 12068), (2128, 9913), (2576, 8189), (3017, 6992), (3059, 6896), (3448, 6118), (3496, 6034)]